Due to the fact that the sacral bone, which forms the caudal component of the lumbosacral junction is an immobile vertebra, early decompensation and a long malaligned curvature of the spinal column evolve following the deformities of this region. Lumbosacral kyphosis (LSK) may cause severe pain, neurological deficit, and cosmetic deterioration. Moreover, it negatively impacts the standing posture of patients with high-grade spondylolisthesis. Both clinical and radiological findings are essential in the diagnosis of LSK. In normal sagittal alignment, lordosis is highest in between L4-S1 vertebrae, and reduced lordosis in this region should also be considered as LSK. Slip angle, Boxall slip angle, and Dubousset-lumbosacral angle are suggested for the evaluation of LSK. LSK may be categorized as spondylolisthetic LSK, infectious LSK, iatrogenic LSK, and LSK accompanying sacral fractures. The main purpose of management is to maintain the lordotic alignment in the lumbosacral region and, therefore obtain a healthy global sagittal alignment. Different osteotomy techniques offering variable degrees of correction are frequently performed for this purpose. In the literature, studies have shown that surgical management of LSK has favorable outcomes. However, ensuring a strong fixation at the lumbosacral junction intraoperatively is essential for preventing long-term complications.